BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

LAMBRETTA SERIES 1

150cc Petrol Class 1
87.3%
first-time pass rate
6.3%
failed outright
863
median miles at test
63
MOT tests, 2005–2025

What fails on a SERIES 1

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
4 44.4
brakes
3 33.3
driving controls
1 11.1
steering and suspension
1 11.1

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the SERIES 1 beats 4 of its 4 closest rivals (PIAGGIO VESPA, HONDA PCX 125, HONDA Vision 110).

Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the SERIES 1.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 1959 (88.9% pass). Weakest: 1959 (88.9%).

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.